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Title

Measurement strategy as a determinant of the measurement uncertainty of an optical scanner

Authors

[ 1 ] Instytut Technologii Mechanicznej, Wydział Budowy Maszyn i Zarządzania, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.8] Mechanical engineering

Year of publication

2019

Published in

Archives of Mechanical Technology and Materials

Journal year: 2019 | Journal volume: vol. 39 | Journal number: no. 1

Article type

scientific article

Publication language

english

Keywords
EN
  • coordinate measuring machine
  • optical scanner
  • measurement strategy
  • accuracy of measurement
Abstract

EN The subject of the article is an attempt to determine the impact of the applied measurement strategy on the accuracy of the measurement result. This problem is particularly crucial when measuring large objects. In these cases, it is not always possible to provide ideal conditions for the submission of particular scans. It is necessary to adjust the strategy to specific imposed conditions defined by the geometry of the object and to the time frame of the measurement itself. With regard to the above, an attempt was made to carry out a series of accuracy studies testing the structural light scanner while measuring elements of overall dimensions greater than the measuring capacity of the scanner. At the same time, various potential measuring strategies were simulated in practical applications. Our studies were conducted using a pre-designed test template with a defined distribution pattern of reference points and geometrical elements. Moreover, in order to make an in-depth investigation of the issue, some trials were undertaken with the use of limiting parameters. That means the scanner had both an excess and shortage of information required for a correct assembly of scans. Those scopes were taken into consideration in the study in order to use the acquired knowledge in practical measuring applications. Furthermore, conclusions from the conducted studies indicate peaks and troughs of respective measuring strategies with special care for determining relationships among the used strategies and the measuring accuracy parameters.

Date of online publication

03.08.2019

Pages (from - to)

26 - 31

DOI

10.2478/amtm-2019-0005

URL

https://content.sciendo.com/view/journals/amtm/39/1/article-p26.xml?rskey=Jlb0Uq&result=1

License type

CC BY-NC-ND (attribution - noncommercial - no derivatives)

Open Access Mode

open journal

Open Access Text Version

final published version

Date of Open Access to the publication

7 months after publication

Full text of article

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Access level to full text

public

Ministry points / journal

5.0

Ministry points / journal in years 2017-2021

5.0

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